Significant locations

Forgeworld Ytha: The last bastion of Imperial forces in the Ytha subsector, this forgeworld is now contested between loyalists and invading Chaos forces. Most of the upper echelons of the Cult Mechanicus on this world have either been corrupted or eliminated, and while the two sides have relatively equal forces at their disposal, Chaos reinforcements are constantly arriving from neighbouring worlds in the Ytha subsector. Ytha is the highest priority for the Imperial liberators, but it is expected that the situation will get worse before it gets better.

Research colony Beta-Epsilon Tertius: Beta-Epsilon has been the source of the Chaos corruption that plagues the Ytha subsector.